function menu_init()
{
  if (versionButton == "3")                   
  {

    // preload all the images for the menu bar
    
    btn_indexon = new Image();           
    btn_indexon.src = "/gfx/index_on.gif";

    btn_indexoff = new Image();       
    btn_indexoff.src = "/gfx/index_off.gif"; 

    btn_infoeon = new Image();           
    btn_infoeon.src = "/gfx/infoe_on.gif";  

    btn_infoeoff = new Image();       
    btn_infoeoff.src = "/gfx/infoe_off.gif"; 

    btn_infodon = new Image();           
    btn_infodon.src = "/gfx/infod_on.gif";  

    btn_infodoff = new Image();       
    btn_infodoff.src = "/gfx/infod_off.gif"; 

    btn_pixon = new Image();           
    btn_pixon.src = "/gfx/pictures_on.gif";  

    btn_pixoff = new Image();       
    btn_pixoff.src = "/gfx/pictures_off.gif"; 

    btn_audioon = new Image();           
    btn_audioon.src = "/gfx/audio_on.gif";  

    btn_audiooff = new Image();       
    btn_audiooff.src = "/gfx/audio_off.gif"; 

    btn_linkson = new Image();           
    btn_linkson.src = "/gfx/links_on.gif";  

    btn_linksoff = new Image();       
    btn_linksoff.src = "/gfx/links_off.gif"; 

    btn_interacton = new Image();           
    btn_interacton.src = "/gfx/interact_on.gif";  

    btn_interactoff = new Image();       
    btn_interactoff.src = "/gfx/interact_off.gif"; 

    btn_contacton = new Image();           
    btn_contacton.src = "/gfx/contact_on.gif";  

    btn_contactoff = new Image();       
    btn_contactoff.src = "/gfx/contact_off.gif"; 

    btn_creditson = new Image();           
    btn_creditson.src = "/gfx/credits_on.gif";  

    btn_creditsoff = new Image();       
    btn_creditsoff.src = "/gfx/credits_off.gif"; 

    btn_historyon = new Image();           
    btn_historyon.src = "/gfx/history_on.gif";  

    btn_historyoff = new Image();       
    btn_historyoff.src = "/gfx/history_off.gif"; 

    btn_statson = new Image();           
    btn_statson.src = "/gfx/stats_on.gif";  

    btn_statsoff = new Image();       
    btn_statsoff.src = "/gfx/stats_off.gif"; 

    btn_copyriteon = new Image();           
    btn_copyriteon.src = "/gfx/copyrite_on.gif";  

    btn_copyriteoff = new Image();       
    btn_copyriteoff.src = "/gfx/copyrite_off.gif"; 

    btn_serviceon = new Image();           
    btn_serviceon.src = "/gfx/service_on.gif";  

    btn_serviceoff = new Image();       
    btn_serviceoff.src = "/gfx/service_off.gif"; 

    btn_sitemapon = new Image();           
    btn_sitemapon.src = "/gfx/sitemap_on.gif";  

    btn_sitemapoff = new Image();       
    btn_sitemapoff.src = "/gfx/sitemap_off.gif"; 

    btn_awardson = new Image();           
    btn_awardson.src = "/gfx/awards_on.gif";  

    btn_awardsoff = new Image();       
    btn_awardsoff.src = "/gfx/awards_off.gif"; 
  }
}

function img_act(imgName)
{
  if (versionButton == "3") 
  {
    imgOn = eval(imgName + "on.src");
    document [imgName].src = imgOn;
  }
}

function img_inact(imgName)
{
  if (versionButton == "3") 
  {
    imgOff = eval(imgName + "off.src");
    document [imgName].src = imgOff;
  }
}